Apparatus for varying the length of a printed section of a printing form



Jan. 10, 1961 w. RITZERFELD EI'AL 2,967,477

APPARATUS FOR VARYING THE LENGTH OF A PRINTED SECTION OF A PRINTING FORMI 4 Sheets-Sheet 1 Filed April 17, 1959 W. RITZERFELD ETAL Jan. 10, 19612,967,477

APPARATUS FOR VARYING THE LENGTH OF A PRINTED SECTION OF A PRINTING FORM4 Sheets-Sheet 2 Filed April 17, 1959 Inner/0151 Jan. 10, 1961 w.RITZERFELD ETAL 2,967,477

APPARATUS FOR VARYING THE LENGTH OF A PRINTED SECTION OF A PRINTING FORMFiled April 17, 1959 4 Sheets$heet 3 fig? m W m Jan. 10,1961 w.RITZERFELD ETAL 2,967,477

' APPARATUS FOR VARYING THE LENGTH OF A PRINTED SECTION OF A PRINTINGFORM 4 Sheets-Sheet 4 Filed April 17, 1959 Inventors? um (H Q A M 9 weUnited States Patent APPARATUS FOR VARYING THE LENGTH OF A PRINTEDSECTION OF A PRINTING FORM Wilhelm Ritzerfeld, Schorlemer Allee 14,Berlin-Dahlem, Germany, and Gerhard Ritzerfeld, Franzensbader Str. 21,Berlin-Grunewald, Germany Filed Apr. 17, 1959, Ser. No. 807,103 Claimspriority, application Germany Apr. 24, 1958 20 Claims. (Cl. 101132.5)

The present invention relates to an apparatus for varying the length ofa printed section of a printing form, and more particularly to aduplicating machine provided with apparatus for printing selected linesections of a printing form and including manually operable means forvarying the length of such printed sections.

The present invention is particularly advantageously applied to rotaryduplicating machines in which a counter pressure roller is moved to aprinting position in close proximity to the duplicating roller Whenevera desired section of the printing form passes through the printing line.The copy sheet is held stationary while the counter pressure roller isretracted, so that consecutive imprints of spaced sections of theprinting form, appear adjacent each other on the copy sheet.

It is one object of the present invention to improve machines of thistype, and to provide a machine in which the length of a selected sectionof the printing form can be varied, so that instead of one line, orcolumn, several lines or columns, are printed on the copy sheet.

Another object of the present invention is to provide simple means forselecting the number of lines, or columns which are to be printed on thecopy sheet.

. A further object of the present invention is to provide manuallyoperated means for determining the number of linesof a printed section.

A further object of the present invention is to provide indicating meansfor indicating the first and last line, or column, of the printedsection of the printing form.

The main object of the present invention is to provide an apparatus bywhich the length of a printed section of a printing form can be selectedby a rapid manual operation requiring neither mechanical skill nortools.

With these objects in view, the present invention mainly consists inapparatus for varying the length of a printed section of a printingform. On embodiment comprises rotary printing roller means on which aprinting form is supported; rotary counter pressure roller means movableto and from a printing position in close proximity to the printingroller means and defining with the same a printing line; first operatingmeans, preferably lever means, connected to the counter pressure rollermeans and moving with the same to and, from the printingposition; firstcontrol means, preferably a turnable ,cam connected to the printingroller means for actuating the first operating means while the printingroller means turns through a small angle and while a narrow section ofthe printing form passes through the printing line; second operatingmeans, preferably lever means; coupling means for coupling the secondoperating means to the movable roller ing roller means to move thecounter pressure roller T 2,967,477 Patented Jan. 10,

means to the printing position while the printing roller means turnsthrough a greater angle and'a wider section of the printing form passesthrough the printing line, Consequently, in addition to the narrowsectiom'which would be printed under control of the first control means,at least a part of a wider section is printed on the printing form undercontrol of the second control means. By adjusting the relative positionbetween the first -and second control means, the length of the effective'parzt' of the second control means can be adjusted, whereb the numberof lines printed on the printing form 'is deter; mined.

In the preferred embodiment of the present invention in which the firstand second control means are cams, the eifective dwell portions of thetwo cams overlap, and the extent of overlapping can be adjusted byturning the sec.- ond control cam relative to the first control cam,whereupon the two control cams are again completedfor rotation.

Means are also provided for selecting the position of the first controlcam means relative to the printing roller means, whereby a printed lineof the printing form can be selected. By corresponding turning of thesecond control cam, the number of lines printed in addition andsuccessive to the printing of the selected line can be determined.

In the preferred embodiment of the present invention, the second controlcam is connected to the first control cam by an arresting wheel and anarrestingpawl. 'M'an ually turnable means are provided which areconnected by a spring to the second control cam so that the same can beturned when the arresting pawl is released. Such release of thearresting pawl is effected by a cam secured to the manually turnablemeans so that by'turning the same through a small angle, thearrestirig'pa'wl is released, whereupon'the second control cam is turnedthrough'the connecting spring. When the manually turnabl'e 'rneants isreleased, the spring urges it to a normal positionfin which the campermits return of the arresting pawl to arresting position connectingthe first and second control cam means in a relatively turned position.i i

The novel features which are considered as character.- istic for theinvention are set forth in particular iii the 5 51 pended claims. Theinvention itself, however, bothfas to its construction and its method ofoperatio n togejthr with additional objects and advantages thereof,IvIillbe best understood from the following description of specificembodiments when read in connection with the accordpanying drawings, inwhich: i

Fig. l is a fragmentary side view illustrating an apparatus according tothe presentinvention; i

Fig. 2 is an enlarged view of a part of Fig. 1, with portions and partsomitted for the sake of claritypafid showing other parts omitted in Fig.l; i i

Fig. 3 is a fragmentary sectional View taken on line 3-3 in Fig. l; V

Fig. 4 is a fragmentary side view illustrating another operationalposition of the apparatus; and

Fig. 5 is a fragmentary view illustrating theindicating means and takenin direction of the arrow 5 in Fig.3;

Referring now to the drawings, the printing-machine is illustrated as arotary duplicator including .a "print g roller 1 on which a printingform is held by a clamp g means Ila. The printing roller 1 is secured to,a rotary shaft 3, and is driven from a motor, notshowl through a belt 7passing over a wheel 7a which is connected to a gear 6 for rotation.Gearo'meshes with a g ar 5 which meshes with a gear 4. As shown in Figs.1' an'd'3; geir 4 is connected to a single revolution clutch includin }awheel 8 and a pawl 9. Consequently, theprinting' car 1 stops after eachrevolution, i i i i A counter pressure roller 10 is mounted on a'shaft11,

and is turnably supported on rocking lever means 12 which are fixedlysecured to a shaft 13. Shaft 13 is mounted in the frame of the machine,and is fixedly connected to a first operating lever 19, while a secondoperating lever 22 is freely turnable on shaft 13. A third operatinglever 18 is also fixed on shaft 13 and turns with the same. However, theposition of levers 19 and 18 can be adjusted relative to shaft 13, sincelevers 12 and 18 are attached to members 12 by bolts which permit anangular adjustment of levers 19 and 18. Members 12 are fixedly securedto shaft 13.

As will be explained hereinafter in greater detail, lever 19 isassociated with the printing of selected lines, lever 18 is associatedwith the printing of the head portion of a text on the printing form,and lever 22 is associated with the printing of additional lines toextend the printed section of the printing form. The arrangement of theoperating lever means is best seen in Fig. 3.

The shaft 11 of the counter pressure roller is also mounted insupporting members which are provided with cutouts in which eccentricmembers 16 are located. Eccentric members 16 can be turned by a manuallyoperated lever 75, as shown in Fig. 1, which can be arrested byarresting means 76 in angularly displaced positions in which theeccentric means 16 displace the counter pressure roller, together withthe supporting members 12, until the counter pressure roller 10 assumesits printing position cooperating with the printing form and theprinting roller along a printing line. This device is used for producingprints of the entire printing form, and is not used during the operationof the machine for printing selected sections of the printing form withwhich the present invention is concerned. A spring 17 is attached tosupporting members 12, and urges the counter pressure roller 10 awayfrom its printing position.

The copy sheet 58 is supplied by transporting rollers 56, 57 to theprinting line between the rollers 1 and 10. Moistening means 59 moistenthe copy sheet in a conventional manner, and holding means 60 hold thecopy sheet stationary while the counter pressure roller 10 is retracted.In this manner, undesired portions of the printing form 2 can passthrough the printing line without effecting an imprint on the copysheet, whereas in the printing position of the counter pressure roller,the copy sheet is gripped along the printing line, and transportedthrough the printing line while the respective section of the printingform is printed on the copy sheet. This arrangement is known, and not anobject of the present invention.

A carrier plate 24 is secured to the printing roller 1, and as best seenin Figures 2 and 3, carries a pair of 'pawls 26 and 27 on a pin 25. Pawl26 is loaded by a spring 28, and engages a ratchet wheel 29. A lever 21can be operated to actuate pawl 27 and to release pawl 26 so that theratchet wheel turns one step under control of a spiral spring 31 whichacts on a member 30 which is freely turnable on shaft 3, and fixedlysecured to ratchet wheel 29. A stationary actuating means 63 including aroller 64 and being under control of a spring 65 is provided, which canbe moved to an operative position indicated in dash and dot lines inFig. 2, in which roller 64 engages lever means 61 and operates the sameduring each revolution of the printing roller to shift ratchet wheel 29a single step. Ratchet wheel 29 is part of a unit which is turnable onshaft 3, and includes in addition to ratchet wheel 29, a gear 62, thecarrier 30, a control cam 32, a supporting member 33 connected by a key36 to carrier 30, an indicating means 35, and an arresting wheel 34secured to member 33 by screws. A spiral spring 31 has the inner endthereof secured to the carrier 24 which turns with the printing roller1, and its outer end secured to carrier 30 on which ratchet wheel 29 isfixed. Consequently, when ratchet wheel 29 is released by pawl 26,spring 31 turns the entire unit with ratchet wheel 29 and carrier.30until ratchet pawl 27 engages ratchet wheel 29 again after the unit hasperformed a single step. The control cam means 32 operates the camfollower roller 21 with lever 19 so that shaft 13 is rocked by cam 32when a selected line of the printing form passes through the printingline. In this manner, support members 12 move counter pressure roller 10to its printing position. When the means 63 operate means 61 during eachrevolution of the printing roller, control cam means 32 is turned onestep with the ratchet wheel 29, and during each successive revolution ofthe printing roller, a different line of the printing form 2 is printed.

Since control cam 32 is secured by screws to carrier 30, the permanentposition of control cam means 32 can be selected by placing the screwsin different bores in carrier 30.

A second unit is turnably mounted on the extended hub of carrier 30, andincludes a support 37, an indicating means 39 secured to support 37, anda second control cam means 38 secured by screws to support 37. Again, aplurality of threaded circumferentially spaced bores is providedpermitting the setting of control cam means 38 to different turnedpositions. The thus selected position is as a rule permanentlymaintained. Support 37 has bores passing therethrough in which a pin 41is turnably mounted. Pin 41 supports at one end thereof a coupling pawl40, as shown in Figures 2 and 3 which under action of a spring 44engages arresting wheel 34, which as explained above turns with thefirst control cam means 32. The other end of pin 41 carries fixedthereon a lever 42 having a cam follower roller 43. It is evident thatby turning of lever 42, coupling pawl 40 can be retracted from arrestingwheel 34 to permit relative turning be tween the first unit associatedwith carrier 30 and the first control cam means 32, and the second unitassociated with the second control cam means 38.

A manually operable member 45 has a hub turnable on an extended hubportion of support 36. A cam 46 is secured by bolts to the web of themanually operable means 45. As shown in Figs. 2 and 3, a spring 47connects threaded pins which are respectively secured to support 37 andto cam 46.

As best seen in Fig. 2, cam 46 has two circumferentially spaced raisedcam portions 66 and 67 which are separated by a recess in which the camfollower roller 43 of lever 40 is normally located.

When manually operated means 45 is turned through a comparatively smallangle in either direction, either cam portion 66 or cam portion 67engages cam follower roller 43 and raises lever 42, and thereby couplingpawl 40. Consequently, arresting wheel 34 and thereby the first controlcam means 32 is separated from the second control cam means 38, and fromthe manually operable means 45. Further turning of the manually operablemeans 45 will tension spring 47 until the turnable support 37 is takenalong together with the coupling pawl 40, which of course remainsretracted from arresting wheel 34 during such further turning movement.

However, when the manually operated means 45 is released, spring 47turns the manually operated means 45 to its normal position relative tosupport 37, in which spring 47 is less tensioned. In this normalposition, cam follower roller 43 falls into the recess between camportions 66 and 67, and coupling pawl 40 again engages arresting wheel34. However, the second unit including support 37 and the second controlcam means 38 are now angularly displaced relative to the first unitincluding carrier 30 and the first control cam means 32.

Fixed to shaft 3 is a third unit including the carrier 48, and threeearns 49, 50 and 51 mounted thereon. Normally the relative positionbetween cams 49, 50 and 51 is determined by bolts passing through holesin the cams and being threaded into threaded bores in a flange ofcarrier 48. By provision of suitably spaced bores in the cams and in thecarrier 48, the relative positions between the cams can be set for thenormal operation.

V Cams 50 and 51 cooperate with the cam follower roller 2t)v which ismounted on operating lever means 12, 22. Consequently, cams 5t) and 51also effect rocking of shaft 13 and movement of counter pressure rollerto and from the printing position.

Cam 50 has a somewhat longer dwell which is associated with the headportion of the printing form, and the relative position between thedwells of cams 50 and 32 is such that first the head section and thenthe selected l'ine section of the printing form are printed. Cam 51effects the ejection of the copy sheet since it moves counter pressureroller 10 to its operative position when the end of the printing formhas passed beyond the printing line at the end of the revolution of theprinting roller. Rollers 1 and 10 grip the end of the copy sheet, pullit out of holding means 60 and eject the copy sheet under control of cam51.

Mounted on the hub portion of carrier 48, is the gear 4 which carriesthe toothed Wheel 8 of the single revolution clutch means. Thecorresponding coupling pawl 9, is mounted on the flange of carrier 48,as best seen in Figs. 1 and 3. A lever 55 can be manually operated toactuate the single revolution clutch 8, 9 by moving coupling pawl 9 toan operative position engaging wheel 8 during a single revolution afterwhich coupling pawl 9 is again disengaged from wheel 8 by lever 55.

Indicating means 35 turns with cam 32, and indicates through a window77, see Fig. 3, the line selected from the printing form for printingunder control of cam 32 and control lever means 19. Indicating means 39has indicia also appearing in window 77, and indicating the last line ofthe section of the printing form which is printed under control of thesecond control cam means 38, When the manually operated control means 45is turned to turn support 37 with indicating means 39 relative toindicating means 35, the indication visible in the window 77 changesonly for the indicating means 39. Fig. 5 illustrates the indication inthe window 77.

The first operating lever means 12, 19 carry an elon gated bar 70projecting in axial direction of shaft 13 toward the second operatinglever means 22. Operating lever means 22 is urged by spring 72 against astop 71 and carries on a pin 74 a turnable coupling part 73 which underaction of spring 75 tends to engage the second coupling part 70 on thefirst operating lever means 19. A cam follower roller 53 at the end ofcoupling part 5 cooperates with an actuating cam 49 which, as explainedabove, is mounted on carrier 48 and turns with shaft 3. When roller 21of control lever means 19 runs on the dwell of the first control cammeans 32, coupling part 70 is moved into a position in which the secondcouplingpart 5 can snap into the coupling position shown in Fig. 4. Inthis position, the second operating lever means 22, which is otherwisefreely turnable on shaft 3, is coupled to the first operating levermeans 19, so that the raised portions of cam 38 are also effective torock shaft 13, and to move counter pressure roller 10 to and from itsprinting position.

The raised cam portion of the second control cam means 38 is longer thanthe raised cam portion of the first control cam means 32. For example,the raised cam portion of cam 32 will move counter pressure roller 10 toits printing position While a line of the printing form passes throughthe printing line, so that this line is printed. On the other hand, thelonger cam portion of the second control cam means 38 will hold thecounter pressure roller 10 in the printing position while several linespass through the printing line. By operation of the manually operablemeans 45, the relative positions between the first control cam means 32,and the second control cam-means 38 is so adjusted that the longer cam"portion of cam 38 forms an extension of the short cam portion of cam32. The length of such extension is deter- :mined by the relativeposition of earns 32 and 38.

By turning the two cams relative to each othen the overlap of theeffective cam portions of earns 32. and-38 can be determined, and inthis manner instead of printing of a single line under control of cam-32, the printing of several lines is effected under the combined controlof earns 32 and 38. However, since the coupling means 40 and 34 connectthe two cams, the automatic operation of cam 32 by means 63, 61, 26, 27,29 and 31 will also effect automatic operation of the second control cammeans 38, so that during each consecutive revolution, a different groupof lines is printed.

At the end of the revolution of the printing roller 1 cam followerroller 53 runs onto a raised portion of cam 49, and retracts thecoupling part 5 from coupling part; 70. In this manner, the couplingbetween levers'22 and 19 is interrupted until the actuating cam 49 againreleases cam follower roller 53, which takes place during the first partof the next following revolution, preferably during passage of theraised portion of the head cam 50 over cam follower roller 20.

The apparatus operates in the following manner;

First, the head cam 50, and the line cam 32 are set in proper positionsfor printing the head portion and'a selected line portion of theprinting form. The line cam 32 can be set by operation of member 61which releases pawl 27 so that ratchet wheel 29 turns stepwise under theaction of spiral spring 31 together with cam 32. The manually operatedmeans 45 is turned. to first disconnect the coupling pawl 40 from thearresting wheel 34, and to then turn support 37 with line extension cam38 relative to cam 32 until the effective cam portions of cams 32 and 38overlap to the extent necessary for printing the de sired number oflines of the printing form. Upon re]- lease of the manually operablemeans 45, the coupling pawl 40 again engages arresting wheel 34, so thatupon turning of the ratchet Wheel 29 with cam 32, support 37 with cam 38is also turned.

When the motor is started, operation of .lever 55m}- tuates the singlerevolution clutch 8, 9 and eifects turning of the carrier 48 togetherwith shaft 3 and printing roller 1. The unit associated with carrier 30and control earn 32 is turned by pawl 26 and ratchet wheel .29, and theunit associated with support 37 and cam .38 .is turned.

through arresting wheel 34 and coupling pawl 40.

First the head cam 50 is effective to turn lever 2219 the position inwhich counter pressure roller 10 isin its printing position so that thehead portion of the text on the printing form is printed. At the sametime, actuat'n'g cam 49 releases coupling part 73, so that the same te sto move to its coupling position. However, lever '19 is still in itsinoperative position in which the second coilpling part 70 slidablyengages the first coupling part When the respective raised cam portionof the line cam 32 engages cam follower roller 21 on lever 19, lever .19is rocked to a position in which the coupling part 7 0 is locatedopposite a recessed shoulder in coupling part 73, permitting couplingpart 73 to snap under the action of spring 75 to its coupling positionengaging coupling part 70 and connecting the second control lever 22 tothe first control lever 19.

Consequently when cam follower roller 21 passes .be-

.tion until the raised cam portion of cam 38 has passed cam followerroller 23.

Near the end of the revolution of the printing roller 1, the ejector cam51 is effective to rock the thirdoperating lever 18 to move counterpressure roller 10 to itsoperg ative position in which the copy sheet isgripped and transported through the printing line to an ejected eposi-At the same time, the cam follower roller 53 of the coupling part 73runs onto a dwell of cam 49 and retracts the coupling part 73 to aninoperative position releasing coupling part 70 and interrupting thecoupling between the first and second operating levers 19 and 22.

It will be understood that each of the elements described above, or twoor more together, may also find a useful application in other types ofprinting machines differing from the types described above.

While the invention has been illustrated and described as embodied in anapparatus for setting a printing machine to print a selected number oflines of a printing form, it is not intended to be limited to thedetails shown, since various modifications and structural changes may bemade without departing in any way from the spirit of the presentinvention.

Without further analysis, the foregoing will so fully reveal the gist ofthe present invention that others can by applying current knowledgereadily adapt it for various app'ications without omitting featuresthat, from the standpoint-of prior art, fairly constitute essentialcharacteristics of the generic or specific aspects of this inventionand, therefore, such adaptations should and are intended to becomprehended within the meaning and range of equivalence of thefollowing claims.

What is claimed as new and desired to be secured by Letters Patent is:

1. In a printing machine, in combination, rotary printing roller meansfor supporting a printing form; rotary counter pressure roller means,one of said roller means being movable to and from a printing positionin close proximity to the other roller means and defining with the samea printing line; first operating means connected to said movable rollermeans for moving the same to and from said printing position; firstcontrol means for said first operating means connected to and operatedby said printing roller means for actuating said first operating meansduring each revolution of said printing roller means to move saidmovable roller means to and from said printing position while saidprinting roller means turns through a small angle and a narrow sectionof the printing form passes through the printing line; second operatingmeans for moving said movable roller means to and from said printingposition; coupling means for coupling said second operating means to themovable roller means while said first operating means is actuated bysaid first control means, and being operatively connected to andactuated by one of said last-mentioned means; second control means foractuating said second operating means while said printing roller meansturns through a greater angle; and means for connecting said secondcontrol means in a plurality of relatively displaced positions to saidfirst control means so that said second control means is effectiveduring each revolution of said printing roller means to move saidmovable roller means to said printing position while said printingroller means turns through a greater angle and a wider section of theprinting form passes through the printing line so that in addition tosaid narrow section, at least a part of said wider section is printed onthe printing form, said part being different in each of the relativelyturned positions.

2. In a printing machine, in combination, rotary printing roller meansfor supporting a printing form; rotary counter pressure roller means,one of said roller means being movable to and from a printing positionin close proximity to the other roller means and defining with the samea printing line; first operating means connected to said movable rollermeans for moving the same to and from said printing position; firstcontrol cam means for said first operating means connected to andoperated by said printing roller means for actuating said firstoperating means during each revolution of said printing roller -means tomove said movable roller means to and from said printing position whilesaid printing roller means turns through a small angle and a narrowsection of the printing form passes through the printing line; secondoperating means for moving said movable roller means to and from saidprinting position; coupling means for coupling said second operatingmeans to the movable roller means while said first operating means isactuated by said first control cam means, and being operativelyconnected to and actuated by one of said last-mentioned means; secondcontrol cam means for actuating said second operating means while saidprinting roller means turns through a greater angle; and means forconnecting said second control cam means in a plurality of relativelyturned positions to said first control cam means so that said secondcontrol cam means is effective during each revolution of said printingroller means to move said movable roller means to said printing positionwhile said printing roller means turns through a greater angle and awider section of the printing form passes through the printing line sothat in addition to said narrow section, at least a part of said widersection is printed on the printing form, said part being different ineach of the relatively turned positions.

3. In a printing machine, in combination, rotary printing roller meansfor supporting a printing form; rotary counter pressure roller means,one of said roller means being movable to and from a printing positionin close proximity to the other roller means and defining with the samea printing line; first operating means connected to said movable rollermeans for moving the same to and from said printing position; firstcontrol cam means for said first operating means connected to andoperated by said printing roller means for actuating said firstoperating means during each revolution of said printing roller means tomove said movable roller means to and from said printing position whilesaid printing roller means turns through a small angle and a narrowsection of the printing form passes through the printing line; secondoperating means for moving said movable roller means to and from saidprinting position; coupling means for coupling said second operatingmeans to said first operating means and being actuated by said firstoperating means to move to a coupling position while said firstoperating means is actuated by said first control cam means and moves toa position in which said movable roller means is in said printingposition whereby said first and second operating means are coup ed whilesaid first operating means is actuated by said first control cam means;second control cam means for actuating said second op erating meanswhile said printing roller means turns through a greater angle; andmeans for connecting said second control cam means in a plurality ofrelatively turnable'positions to said first control cam means so thatsaid second control cam means is effective during each revolution ofsaid printing roller means to move said movable roller means to saidprinting position while said printing roller means turns through agreater angle and a wider section of the printing form passes throughthe printing line so that in addition to said narrow section, at least apart of said wider section is printed on the printing form, said partbeing different in each of the relatively turned positions.

4. In a printing machine, in combination, rotary printing roller meansfor supporting a printing form; rotary counter pressure roller means,one of said roller means being movable to and from a printing positionin close proximity to the other roller means and defining with the samea printing line; first operating lever means connected to said movableroller means for moving the same to and from said printing position;first control cam means for s id first operating means connected to andoperated by sa d printing roller means for actuating said firstoperating lever means during each revolution of said printing rollermeans to move said movable roller means to and from said printingposition while said printing roller means turns through a small angleand a narrow section of the printing form passes through the printingline; second operating lever means for moving said movable roller meansto and from said printing position; coupling means 9 for coupling saidsecond operating lever means to the movable roller means while saidfirst operating lever means is actuated by said first control cam means,and being operatively connected to and actuated by one of saidlastmentioned means; second control cam means for actuating said secondoperating lever means whilesaid printing roller means turns through agreater angle; and means for connecting said second control cam means ina plurality of relatively turnable positions to said first control cammeans so that said second control cam means is efiective during eachrevolution of said printing roller means to move said movable rollermeans to said printing position while said printing roller means turnsthrough a greater angle and a wider section of the printing form passesthrough the printing line so that in addition to said narrow section, atleast a part of said wider section is printed on the printing form, saidpart being difierent in each of the relatively turned positions.

5. In a printing machine, in combination, rotary printing roller meansfor supporting a printing form; rotary counter pressure roiler means,one of said roller means being movable to and from a printing positionin close proximity to the other roller means and defining with the samea printing line; first operating means connected to said movable rollermeans for moving the same to and from said printing position; firstcontrol cam means for said first operating means connected to andoperated by said printing roller means for actuating said firstoperating means during each revolution of said printing roller means tomove said movable roller means to and from said printing position whilesaid printing roller means turns through a small angle and a narrowsection of the printing form passes through the printing line, saidfirst control cam means having at least one short dwell; secondoperating means for moving said movable roller means to and from saidprinting position; coupling means for coupling said second operatingmeans to the movable roller means while said first operating means isactuated by said first control cam means, and being operativelyconnected to and actuated by one of said last-mentioned means; secondcontrol cam means having at least one long dwell for actuating saidsecond operating means while said printing roller means turns through agreater angle; and means for connecting said second control cam means ina plurality of relatively turnable positions to said first control cammeans in which said long dwell of said second control cam means extendssaid short dwell of said first control cam means for different lengthsso that said second control cam means is effective during eachrevolution of said printing roller means to move said movable rollermeans to said printing position while said printing roller means turnsthrough a greater angle and a wider section of the printing form passesthrough the printing line so that in addition to said narrow section, atleast a part of said wider section is printed on the printing form, saidpart being different in each of the relatively turned positions.

6. In a printing machine, in combination, rotary printing roller meansfor supporting a printing form; rotary counter pressure roller means,one of said roller means being movable to and from a printing positionin close proximity to the other roller means and defining with the samea printing line; first operating means connected to said movable rollermeans for moving the same to and from said printing position; firstcontrol means for said first operating means connected to and operatedby said printing roller means for actuating said first operating meansduring each revolution of said printing roller means to move saidmovable roller means to and from said printing position while saidprinting roller means turns through a small angle and a narrow sectionof the printing form passes through the printing line; second op;-erating means for moving said movable roller means to and from saidprinting position; coupling means for coupling said second operatingmeans to said first operating "10 means while said first operating meansis actuated'by said first control means, and being operatively connectedto and actuated by one of said last-mentioned means; second controlmeans for actuating said second operating means while said printingroller means turns through a greater angle; and mean for connecting saidsecond control means in a plurality of relatively displaced positions tosaid first control means so that said second control means is efiectiveduring each revolution of said printing roller means to move saidmovable roller means to said printing position while said printingroller means turns through a greater angle and a wider section of theprinting form passes through the printing line so that in addition tosaid narrow section, at least a part of said wider section is printed onthe printing form, said part being different in each of the relativelyturned positions.

7. In a printing machine, in combination, rotary printing roller meansfor supporting a printing form; rotary counter pressure roller means,one of said roller means being movable to and from a printing positionin close proximity to the other roller means and defining with the samea printing line; first operating lever means connected to said movableroller means for moving the same to and from said printing position;first control cam means for said first operating means connected to andoperated by said printing roller means for actuating said firstoperating lever means during each revolution of said printing rollermeans to move said movable roller means to and from said printingposition while said printing roller means turns through a small angleand a narrow section of the printing form passes through the printingline, said first control cam means having at least one short dwell;second operating lever means for moving said movable roller means to andfrom said printing position; coupling means for coupling said secondoperating lever means to said first operating lever means and beingactuated by said first operating lever means to move to a couplingposition While said first operating lever means is actuated by saidfirst control cam means; second control cam means having at least onelong dwell for actuating said second operating lever means while saidprinting roller means turns through a greater angle; and means forconnecting said second control cam means in a plurality of relativelyturnable positions to said first control cam means in which said longdwell of said second control cam means extends said short dwell of saidfirst control cam means for different lengths so that said secondcontrol cam means is effective during each revolution of said printingroller means to move said movable roller means to said printing positionwhile said printing roller means turns through a greater angle and awider section of the printing form passes through the printing line sothat in addition to said narrow section, at least a part of said Widersection is printed on the printing form, said part being difierent ineach of the relatively turned positions.

8. In a print-ing machine, in combination, rotary 'printing roller meansfor supporting a printing form; rotary counter pressure roller means,one of said roller means being movable to and from a printing positionin close proximity to the other roller means and defining with the samea printing line; first operating lever means connected to said movableroller means for moving the same to and from said printing position;first control cam means for said first operating means connected to andoperated by said printing roller means for actuating said firstoperating lever means during each revolution of said printing rollermeans to move said movable roller means to and from said printingposition while said printing roller means turns through a small angleand a narrow section of the printing form passes through the printingline, said first control cam means having at least one short dwell;second operating lever means for moving said movable roller means to andfrom Said printing position; coupling means for coupling said secondoperating lever means to said first operating lever means, and includinga first coupling part fixedly connected to said first operating levermeans, and a second coupling part movably connected to said secondoperating lever means, and tending to assume a coupling position;actuating cam means connected to said printing roller means for rotation therewith and releasing said second movable coupling part to moveto said coupling position when said first operating lever means moveswith said first coupling part to the position in which said movableroller means is in said printing position whereby said first and secondoperating lever means are coupled while said first operating lever meansis actuated by said first control cam means; second control cam meanshaving at least one long dwell for actuating said second operating levermeans while said printing roller means turns through a greater angle;and means for connecting said second control cam means in a plurality ofrelatively turnable positions to said first control cam means in whichsaid long dwell of said second control cam means extends said shortdwell of said first control cam means for different lengths so that saidsecond control cam means is effective during each revolution of saidprinting roller means to move said movable roller means to said printingposition while said printing roller means turns through a greater angleand a wider section of the printing form passes through the printingline so that in addition to said narrow section, at least a part of saidwider section is printed on the printing form, said part being differentin each of the relatively turned positions.

9. A machine as set forth in claim 8 wherein said first coupling part isa rigid bar projecting from said first operating lever means toward saidsecond operating lever means; wherein said second coupling part is aspring loaded member for engaging said bar; and wherein said actuatingcam means operate said member to release the same in a selected positionof said printing roller means, and to permit movement of said springloaded member to said coupling position in another selected position ofsaid printing roller means.

10. A machine as set forth in claim 1 wherein said means for connectingsaid first and second control means include an arresting wheel connectedto one of said control means, and an arresting pawl connected to theother of said control means and tending to engage said arresting wheelfor connecting said first and second control means for turning movement;and manually operable means connected to said second control means, saidmanually operable means including a cam cooperating with said arrestingpawl for moving the same to a releasing position releasing saidarresting wheel during turning movement of said manually operable meansthrough a small angle so that during further turning of said manuallyoperable means, only said second control means is turned relative tosaid first control means and to said printing roller means.

11. A machine as set forth in claim 5 wherein said means for connectingsaid first and second control cam means include an arresting wheelconnected to said first control cam means for rotation therewith, and anarresting pawl mounted on the said second control cam means and tendingto engage said arresting wheel for connecting said first and secondcontrol cam means for turning movement; and manually operable meansconnected to said second control cam means for turning movement, saidmanually operable means including a cam cooperating with said arrestingpawl for moving the same to a releasing position releasing saidarresting wheel during turning movement of said cam through a smallangle so that during further turning of said manually operable meansonly said second control cam means is turned relative to said firstcontrol cam means and to said printing roller means.

12. A machine as set forth in claim 11 and including a spring connectingsaid manually operable means with said second control cam means, saidspring permitting turning of said manually operable means through saidsmall angle without displacement of said second control cam means, andconnecting said manually operable means with said second control cammeans for further turning movement through a greater turning angle.

13. A machine as set forth in claim 12 wherein said actuating cam has atwo spaced raised cam portions cooperating with said arresting pawl,wherein said arresting pawl moved to a releasing position by said twocam portions, and is turned with said second control cam means relativeto said arresting wheel and said first control cam means during furtherturning of said manually operable means, so that upon release of saidmanually operable means after said further turning, said spring turnssaid manually operable means and said actuating cam to a normal positionin which a recessed portion of said cam between said two raised camportion permits return of said arresting pawl into engagement with saidarresting wheel.

14. In a printing machine, in combination, rotary printing roller meansfor supporting a printing form; rotary counter pressure roller means,one of said roller means being movable to and from a printing positionin close proximity to the other roller means and defining with the samea printing line; first operating means connected to said movable rollermeans for moving the same to and from said printing position; firstcontrol cam means for said first operating means; shiftable couplingmeans connecting said first control cam means with said printing rollermeans and being operable for connecting said first control cam means andsaid printing roller means in positions angularly displaced throughdifferent angles relative to each other, said first control cam meansactuating said first operating means during each revolution of saidprinting roller means to move said movable roller means to and from saidprinting position while said printing roller means turns through a smallangle and a narrow section of the printing form passes through theprinting line, said first control cam means having at least one shortdwell; second operating means for moving said movable roller means toand from said printing position; coupling means for coupling said secondoperating means to the movable roller means while said first operatingmeans is actuated by said first control cam means, and being operativelyconnected to and actuated by one of said last-mentioned means; secondcontrol cam means having at least one long dwell for actuating saidsecond operating means while said printing roller means turns through agreater angle; and means for connecting said second control cam means ina plurality of relatively turnable positions to said first control cammeans in which said long dwell of said second control cam means extendssaid short dwell of said first control cam means for different lengthsso that said second control cam means is effective during eachrevolution of said printing roller means to move said movable rollermeans to said printing position while said printing roller means turnsthrough a greater angle and a wider section of the printing form passesthrough the printing line so that in addition to said narrow section, atleast a part of said wider section is printed on the printing form, saidpart being different in each of the relatively turned positions.

15. A machine as set forth in claim 14 wherein said shiftable couplingmeans includes an arresting wheel connected to said first control cammeans for turning movement, and coupling pawl means mounted on saidprinting roller means and tending to assume a coupling position engagingsaid arresting wheel; and releasing means on said printing roller meansfor releasing said coupling pawl means from said arresting wheel.

16. A machine as set forth in claim 15 and including stationary meansengaging said releasing means during each revolution of the printingroller means; spring means urging said arresting wheel to turn relativeto said printing roller means; stop pawl means tending to arrest saidarresting wheel means after a single turning step, so that 13 saidarresting wheel and said first and second control cam means turn asingle step relative to said printing roller means after each revolutionof said printing roller means.

17. In a printing machine, in combination, rotary printing roller meansfor supporting a printing form; rotary counter pressure roller means,one of said roller means being movable to and from a printing positionin close proximity to the other roller means and defining with the samea printing line; first operating means connected to said movable rollermeans for moving the same to and from said printing position; firstcontrol cam means for said first operating means connected to andoperated by said printing roller means for actuating said firstoperating means during each revolution of said printing roller means tomove said movable roller means to and from said printing position whilesaid printing roller means turns through a small angle and a narrowsection of the printing form passes through the printing line, saidfirst control cam means having at least one short dwell; firstindicating means connected to said first control cam means for turningmovement to indicate the respective section of the printing form; secondoperating means for moving said movable roller means to and from saidprinting position; coupling means for coupling said second operatingmeans to the movable roller means while said first operating means isactuated by said first control cam means, and being operativelyconnected to and actuated by one of said last-mentioned means; secondcontrol cam means having at least one long dwell for actuating saidsecond operating means while said printing roller means turns through agreater angle; means for connecting said second control cam means in aplurality of relatively turnable positions to said first control cammeans in which said long dwell of said second control cam means extendsaid short dwell of said first control cam means for different lengthsso that said second control cam means is efiective during eachrevolution of said printing roller means to move said movable rollermeans to said printing position while said printing roller means turnsthrough a greater angle and a wider section of the printing form passesthrough the printing line so that in addition to said narrow section, atleast a part of said wider section is printed on the printing form, saidpart being different in each of the relatively turned positions; andsecond indicating means connected to said second control cam means forindicating the respective section of the printing form.

18. A machine as set forth in claim 17 wherein said first indicatingmeans indicate line sections of the printing form, and said secondindicating means indicate the last one of a plurality of line sectionsforming said wider section of said printing form.

19. In a printing machine, in combination, rotary printing roller meansfor supporting a printing form; rotary counter pressure roller means,said counter pressure roller means being movable to and from a printingposition in close proximity to the other roller means and defining withthe same a printing line; first operating means connected to saidmovable counter pressure roller means for moving the same to and fromsaid printing position; first control cam means for said first operatingmeans connected to and operated by said printing roller means foractuating said first operating means during each revolution of saidprinting roller means to move said movable counter pressure roller meansto and from said printing position while said printing roller meansturns through a small angle and a narrow section of the printing formpasses through the printing line, said first control cam means having atleast one short dwell; second operating means for moving said movableroller means to and from said printing position; coupling means forcoupling said second operating means to the movable counter pressureroller means while said first operating means is actuated by said firstcontrol cam means, and being operatively connected to and actuated byone of said last-mentioned means; second control cam means having atleast one long dwell for actuating said second operating means whilesaid printing roller means turns through a greater angle; means forconnecting said second control cam means in a plurality of relativelyturnable positions to said first control cam means in which said longdwell of said second control cam means extends said short dwell of saidfirst control cam means for different lengths so that said secondcontrol cam means is effective during each revolution of said printingroller means to move said movable roller means to said printing positionwhile said printing roller means turns through a greater angle and awider section of the printing form passes through the printing line sothat in addition to said narrow section, at least a part of said widersection is printed on the printing form, said part being different ineach of the relatively turned positions; and a shaft means fixedlyconnected to said printing roller means and turnably supporting saidfirst control cam means and said second control cam means.

20. In a printing machine, in combination, rotary printing roller meansfor supporting a printing form; rotary counter pressure roller means,one of said roller means being movable to and from a printing positionin close proximity to the other roller means and defining with the samea printing line; first operating lever means connected to said movableroller means for moving the same to and from said printing position;first control cam means for said first operating means connected to andoperated by said printing roller means for actuating said firstoperating lever means during each revolution of said printing rollermeans to move said movable roller means to and from said printingposition while said printing roller means turns through a small angleand a narrow section of the printing form passes through the printingline, said first control cam means having at least one short dwell;second operating lever means for moving said movable roller means to andfrom said printing position; coupling means for coupling said secondoperating lever means to said first operating lever means and beingactuated by said first operating lever means to move to a couplingposition while said first operating lever means is actuated by saidfirst control cam means; second control cam means having at least onelong dwell for actuating said second operating lever means while saidprinting roller means turns through a greater angle; means forconnecting said second control cam means in a plurality of relativelyturnable positions to said first control cam means in which said longdwell of said second control cam means extends-1 said short dwell ofsaid first control cam means for different lengths so that said secondcontrol cam means is effective during each revolution of said printingroller means to move said movable roller means to said printing positionwhile said printing roller means turns through a greater angle and awider section of the printing form passes through the printing line sothat in addition to said narrow section, at least a part of said widersection is printed on the printing form, said part being difierent ineach of the relatively turned positions; third control cam meansconnected to said printing roller means for rotation therewith; thirdoperating lever means connected to said mov-i able roller means formoving the same to and from said' printing position under control ofsaid third control cam means, said third control cam means having adwell .portion associated with the head portion of the text on theprinting form and being angularly positioned relative to said first andsecond control cam means to operate said movable roller means throughsaid third operating lever means before operation by said first andsecond operating lever means during each revolution of said printingroller means.

2,753,791 Thurman July 10, 1956 Wilderson July 10,1945

